\HeaderA{cover}{Coverage For A Rule}{cover}
\keyword{coverage}{cover}
\begin{Description}\relax
Calculates coverage for a rule.
\end{Description}
\begin{Usage}
\begin{verbatim}
cover(rule, data)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{rule}] a rule to calculate coverage for.
\item[\code{data}] a data set used in calculation.
\end{ldescription}
\end{Arguments}

